{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://awesomecua.github.io/schemas/repository-alias.schema.json",
  "title": "AwesomeCUA source-reviewed repository aliases",
  "description": "Other names observed to identify the same numeric GitHub repository, or the same Hugging Face model or dataset object. These observations do not create resources or approve release completeness, licensing or relevance.",
  "type": "array",
  "items": {
    "type": "object",
    "additionalProperties": false,
    "required": ["alias_id", "target_id", "repository_id", "basis", "reviewed_at", "observations"],
    "properties": {
      "alias_id": {"type": "string"},
      "target_id": {"type": "string"},
      "repository_id": {"type": ["integer", "string"]},
      "basis": {"enum": ["official_github_repository_id", "official_huggingface_repository_id"]},
      "reviewed_at": {"type": "string", "format": "date-time"},
      "observations": {"type": "array", "minItems": 2, "maxItems": 2}
    },
    "if": {"properties": {"basis": {"const": "official_huggingface_repository_id"}}},
    "then": {
      "properties": {
        "alias_id": {"$ref": "#/$defs/hubId"},
        "target_id": {"$ref": "#/$defs/hubId"},
        "repository_id": {"$ref": "#/$defs/hubObjectId"},
        "observations": {"items": {"$ref": "#/$defs/hubObservation"}}
      }
    },
    "else": {
      "properties": {
        "alias_id": {"$ref": "#/$defs/githubId"},
        "target_id": {"$ref": "#/$defs/githubId"},
        "repository_id": {"type": "integer", "minimum": 1},
        "observations": {"items": {"$ref": "#/$defs/observation"}}
      }
    }
  },
  "$defs": {
    "githubId": {"type": "string", "pattern": "^github:[a-z0-9][a-z0-9-]*/[a-z0-9_.-]+$"},
    "observation": {
      "type": "object",
      "additionalProperties": false,
      "required": ["url", "resolved_url", "repository_id", "full_name", "html_url", "retrieved_at", "sha256"],
      "properties": {
        "url": {"type": "string", "format": "uri", "pattern": "^https://api\\.github\\.com/repos/[A-Za-z0-9][A-Za-z0-9-]*/[A-Za-z0-9_.-]+$"},
        "resolved_url": {"type": "string", "format": "uri", "pattern": "^https://api\\.github\\.com/(repos/[A-Za-z0-9][A-Za-z0-9-]*/[A-Za-z0-9_.-]+|repositories/[0-9]+)$"},
        "repository_id": {"type": "integer", "minimum": 1},
        "full_name": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9-]*/[A-Za-z0-9_.-]+$"},
        "html_url": {"type": "string", "format": "uri", "pattern": "^https://github\\.com/[A-Za-z0-9][A-Za-z0-9-]*/[A-Za-z0-9_.-]+$"},
        "retrieved_at": {"type": "string", "format": "date-time"},
        "sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"}
      }
    },
    "hubId": {"type": "string", "pattern": "^url:[0-9a-f]{20}$"},
    "hubObjectId": {"type": "string", "pattern": "^[0-9a-f]{24}$"},
    "hubObservation": {
      "type": "object",
      "additionalProperties": false,
      "required": ["url", "resolved_url", "repository_id", "full_name", "html_url", "retrieved_at", "sha256"],
      "properties": {
        "url": {"type": "string", "format": "uri", "pattern": "^https://huggingface\\.co/api/(models|datasets)/[A-Za-z0-9][A-Za-z0-9_.-]*/[A-Za-z0-9_.-]+$"},
        "resolved_url": {"type": "string", "format": "uri", "pattern": "^https://huggingface\\.co/api/(models|datasets)/[A-Za-z0-9][A-Za-z0-9_.-]*/[A-Za-z0-9_.-]+$"},
        "repository_id": {"$ref": "#/$defs/hubObjectId"},
        "full_name": {"type": "string", "pattern": "^[A-Za-z0-9][A-Za-z0-9_.-]*/[A-Za-z0-9_.-]+$"},
        "html_url": {"type": "string", "format": "uri", "pattern": "^https://huggingface\\.co/(datasets/)?[A-Za-z0-9][A-Za-z0-9_.-]*/[A-Za-z0-9_.-]+$"},
        "retrieved_at": {"type": "string", "format": "date-time"},
        "sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"}
      }
    }
  }
}